HPED 2507 Lecture Notes - Lecture 8: Adipose Tissue, Thyroid Hormones, Calorie
8 Feb 2020
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Defining calorie: calories are a measurement for energy contained in food, heat required to raise temperature of 1 kg of water 1oc. Calorie or the kcal are often used interchangeably. Energy output: basal metabolism, sum total of energy expended on all of the involuntary activities needed to sustain life, excludes digestion, voluntary activities, thermic effect of food. 5%-10% of a meal"s energy is expended in stepped-up metabolism in the 5+ hours after a meal: basal metabolism uses energy for: breathing, heart; body temp; tissue renewal; activities to sustain life; growth. Factors that affect bmr: age, growth, body composition (muscle mass, height, physical activity, health status (fever, stress, environmental temperature, fasting/starvation, genetics, thyroxine. Short term bmr will not increase; however, long term - increasing voluntary activities will increase bmr because lean tissue has a higher bmr then fat tissue. Eer = 354-6. 91 x age + pa x [(9. 36 x wt) + (726 x ht)]
